Battery cell, battery, and power consuming device

A battery cell, comprising:

• a shell comprising a plurality of side plates that enclose an end opening of the shell;
• an electrode assembly arranged in the shell;
• and
• an end cap arranged at the end opening, the end cap comprising a plurality of edge portions that are fixedly connected to an end surface of the end opening and respectively correspond to the plurality of side plates;
• and, wherein
• the plurality of side plates include a first side plate and a second side plate with different thicknesses, and the plurality of edge portions include a first edge portion corresponding to the first side plate and a second edge portion corresponding to the second side plate;
• and an outer wall of the first side plate is substantially flush with an outer side surface of the first edge portion in a thickness direction of the first side plate, and an outer wall of the second side plate is substantially flush with an outer side surface of the second edge portion in a thickness direction of the second side plate.